Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008

doi:10.1016/j.agrformet.2011.06.013

	Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008
	Chen, Changqing 1; Lei, Chengxia 1; Deng, Aixing 2; Qian, Chunrong 1; Hoogmoed, Willem 3; Zhang, Weijian 1,2
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2011
卷号	151 期号:12 页码:1580-1588
关键词	Global warming Daily minimum temperature Corn production Food security Northeast China
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2011.06.013
通讯作者	Chen, Changqing
英文摘要	Recent crop model projections have shown that crop production may benefit from warming, especially in the high latitudes, but hard evidence is limited. In this study we conducted correlation and regression analyses of climate records of seventy-two meteorological stations and records of corn yield over the period 1965-2008 in Northeast China. It was found that over these forty-four years. the diurnal mean, minimum and maximum temperatures during corn growing season increased on average by 0.31 degrees C, 0.42 degrees C and 0.23 degrees C every ten years, respectively. No significant change in precipitation was found, although differences between years were large. The daily minimum temperature was the dominant factor to corn production. Corn yield was significantly correlated with the daily minimum temperature in May and September. According to a regression analysis of the anomalies of corn yield and air temperature, a 1.0 degrees C increase in daily minimum temperature in May or September will lead to an increment of 303 kg ha(-1) or 284 kg ha(-1) in corn yield, respectively. Corn varieties with longer growth duration will profit most from the climatic changes but agronomic practices may have to be modified to address expected weather extremes such as droughts and periods with heavy rainfall. (C) 2011 Elsevier B.V. All rights reserved.
学科主题	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences ; AGRONOMY ; FORESTRY ; METEOROLOGY & ATMOSPHERIC SCIENCES
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000297277200009
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5237]
专题	作物科学研究所_栽培生理学系
作者单位	1.Nanjing Agr Univ, Inst Appl Ecol, Nanjing 210095, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Minist Agr, Key Lab Crop Ecol Physiol & Prod, Beijing 100081, Peoples R China 3.Wageningen Univ, Farm Technol Grp, NL-6700 AA Wageningen, Netherlands
推荐引用方式 GB/T 7714	Chen, Changqing,Lei, Chengxia,Deng, Aixing,et al. Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008[J]. AGRICULTURAL AND FOREST METEOROLOGY,2011,151(12):1580-1588.
APA	Chen, Changqing,Lei, Chengxia,Deng, Aixing,Qian, Chunrong,Hoogmoed, Willem,&Zhang, Weijian.(2011).Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008.AGRICULTURAL AND FOREST METEOROLOGY,151(12),1580-1588.
MLA	Chen, Changqing,et al."Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008".AGRICULTURAL AND FOREST METEOROLOGY 151.12(2011):1580-1588.